Which company owns MAC address prefix D0:A0:D6?

MAC address prefix D0:A0:D6 is registered to ChengDu TD Tech in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:A0:D6 has a network interface built by ChengDu TD Tech.

What is the OUI D0:A0:D6?

D0:A0:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ChengDu TD Tech. It covers every address from D0:A0:D6:00:00:00 to D0:A0:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-A0-D6.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in D0:A0:D6:00:00:00 that is D0:A0:D6 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is ChengDu TD Tech located?

ChengDu TD Tech is listed at C3 floor, software park, No. 219, Tianhua Second Road Chengdu Tianfu Avenue, high tech Zone CN 610041 in the IEEE OUI registry entry for D0:A0:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.

How many MAC prefixes does ChengDu TD Tech own?

ChengDu TD Tech holds 2 OUI prefixes in the IEEE registry, of which D0:A0:D6 is one. A device made by ChengDu TD Tech could carry a MAC address from any of them.

ChengDu TD Tech

MAC address prefix D0:A0:D6 is registered to ChengDu TD Tech in the IEEE OUI registry. Any device whose MAC address begins with D0:A0:D6 has a network interface built by ChengDu TD Tech. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from D0:A0:D6:00:00:00 to D0:A0:D6:FF:FF:FF.

OUI prefix: D0:A0:D6
Hyphen form: D0-A0-D6
MAC range: D0:A0:D6:00:00:00 – D0:A0:D6:FF:FF:FF
Addresses in block: 16,777,216
Organization: ChengDu TD Tech
Address: C3 floor, software park, No. 219, Tianhua Second Road Chengdu Tianfu Avenue, high tech Zone CN 610041
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Other prefixes from ChengDu TD Tech

ChengDu TD Tech holds 2 OUI prefixes in total. A device with this exact prefix could just as well carry any of these:

9C:54:40

Assignment history (3)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "Chengdu TD Tech Ltd."
archived source →
2022-07-11Renamed from "Chengdu TD Tech Ltd." to "ChengDu TD Tech"
archived source →
2026-07-17Assigned to "ChengDu TD Tech"

Nearby in the registry

The prefixes assigned immediately before and after D0:A0:D6:

FAQ

Which company owns MAC address prefix D0:A0:D6?: MAC address prefix D0:A0:D6 is registered to ChengDu TD Tech in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with D0:A0:D6 has a network interface built by ChengDu TD Tech.
What is the OUI D0:A0:D6?: D0:A0:D6 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to ChengDu TD Tech. It covers every address from D0:A0:D6:00:00:00 to D0:A0:D6:FF:FF:FF, or 16,777,216 addresses in total. It is also written D0-A0-D6.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in D0:A0:D6:00:00:00 that is D0:A0:D6 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is ChengDu TD Tech located?: ChengDu TD Tech is listed at C3 floor, software park, No. 219, Tianhua Second Road Chengdu Tianfu Avenue, high tech Zone CN 610041 in the IEEE OUI registry entry for D0:A0:D6. This is the address the organization registered with the IEEE, which may differ from its current operating address.
How many MAC prefixes does ChengDu TD Tech own?: ChengDu TD Tech holds 2 OUI prefixes in the IEEE registry, of which D0:A0:D6 is one. A device made by ChengDu TD Tech could carry a MAC address from any of them.